The improvement and the capacity assessment of existing buildings has become the main topic of the last years so that different studies can be found devoted to damaged structures or structures not having a capacity compatible with the safety levels of the actual codes. Reinforced concrete framed structure buildings represent a conspicuous rate of the existing constructions so many efforts are a...

Steel pipes with circular cross-sections are usually used in cooling panels of electric arc furnaces. In the present study pipes with square cross-sections under equivalent conditions were used to obtain more information on the possibility of increasing the heat transfer and cooling efficiency. The results showed increased efficiency of the square pipe compared to the circular cross-section pip...

Corrosion of steel reinforcement in concrete structures and bridges is a major problem facing the departments of transportation worldwide. In the United States, maintenance and replacement costs are measured in billions of dollars. Salt environment in hot climate and the use of deicing salts in cold regions have resulted in steady deterioration of bridge decks due to corrosion. These concerns h...

Hydrogel systems promote the development of flexible energy storage devices because their inherent mechanical elasticity and ionic conductivity. However, achieving stable capacity under violent deformation is still a challenge for hydrogel devices. In this work, an all-in-one integrated supercapacitor (AISC) was assembled using in situ deposited polyaniline/graphene oxide nanocomposites both si...

To study the standardized evaluation method of vibration comfort pedestrian bridges, effect transient response term is ignored based on generalized single degree freedom (SDOF) with reference to American Institution Steel Construction inc (AISC 11) specification. The resonance conditions between crowd and bridge structure are also considered, simplified an SDOF system. Then, peak acceleration u...

Cold-Formed Steel sections are commonly used in residential and commercial buildings as purlins, side girts, portal frames moment resisting frames. The bolted connections can be connect the different structural components of these together. These allowing transfer internal forces structures such axial forces, shear bending moments torsion. main objective this paper is to study numerically behav...